Help - brake booster fault code skoda citigo
Discussion
Having a problem with stop-start on 2012 Citigo. It will never stop the engine for more than about 40 seconds, and then will restart itself. Every couple of days it throws up a warning bleep and won't stop at all...
I had the codes checked when the car was serviced yesterday. I've got two error codes:
brake booster pressure sensor P0555 00 (032) electrical malfunction & brake booster pressure sensor P0556 00 (104) implausible signal
So, two questions:
1) Is it seems to me that electrical malfunction & implausible signal could only be caused by an electrical fault in the sensor or the wiring to the sensor, right? Otherwise I'd expect a 'pressure too low' or a 'pressure to high' fault (for which there is a code - P0557 & P0558). So I'd expect that the cause is most likely a faulty sensor.
BUT according the service invoices I've got from the previous owner, this sensor was changed about a year ago. (presumably for the same fault, although I don't know.)
SO: What are the chances of two faulty sensors in a row? It seems unlikely to me.
2) Also, it ought to be easy to change the sensor, because it's easy to reach it. But rather than bolts, it's held on by plastic clips (argh. Anyone unclipped clips like this before? It looks like you need to squeeze all four lugs together at once. How on earth do I do that?
PS Please, no comments about why you don't like stop-start. Or why you do. It happened to be on the car I bought, and now I've got a car that does't work properly :-(
I had the codes checked when the car was serviced yesterday. I've got two error codes:
brake booster pressure sensor P0555 00 (032) electrical malfunction & brake booster pressure sensor P0556 00 (104) implausible signal
So, two questions:
1) Is it seems to me that electrical malfunction & implausible signal could only be caused by an electrical fault in the sensor or the wiring to the sensor, right? Otherwise I'd expect a 'pressure too low' or a 'pressure to high' fault (for which there is a code - P0557 & P0558). So I'd expect that the cause is most likely a faulty sensor.
BUT according the service invoices I've got from the previous owner, this sensor was changed about a year ago. (presumably for the same fault, although I don't know.)
SO: What are the chances of two faulty sensors in a row? It seems unlikely to me.
2) Also, it ought to be easy to change the sensor, because it's easy to reach it. But rather than bolts, it's held on by plastic clips (argh. Anyone unclipped clips like this before? It looks like you need to squeeze all four lugs together at once. How on earth do I do that?
PS Please, no comments about why you don't like stop-start. Or why you do. It happened to be on the car I bought, and now I've got a car that does't work properly :-(
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